Suppose I have 2 components A and B which are not linked (by props), but which are linked by the database. component A has a button that changes the data in the database.

I want component B (only with A) to render when the database changes. The problem is, that when the component A mutate the database, the page needs to be refreshed in order for component B to be updated.

It's may be a weird question but I'm still a beginner in React.